Overview ·················································································································································1-1

Introduction to QoS··························································································································1-1

Traditional Packet Forwarding Service····························································································1-1

New Applications and New Requirements ······················································································1-1

Major Traffic Control Techniques ····································································································1-2

QoS Supported by the S3100 Series Ethernet Switches········································································1-2

Introduction to QoS Features··················································································································1-3

Traffic Classification ························································································································1-3

Priority Trust Mode ··························································································································1-4

Priority Marking································································································································1-8

Traffic Policing and Traffic Shaping·································································································1-8

Port Rate Limiting ··························································································································1-11

Traffic Redirecting ·························································································································1-11

VLAN Marking ·······························································································································1-11

Queue Scheduling ·························································································································1-11

Flow-Based Traffic Accounting······································································································1-12

Burst ··············································································································································1-13

Traffic Mirroring ·····························································································································1-13

QoS Configuration·································································································································1-13

Configuring Priority Trust Mode·····································································································1-13

Configuring Priority Mapping ·········································································································1-15

Marking Packet Priority··················································································································1-17

Configuring Traffic Policing ···········································································································1-19

Configuring Traffic Shaping···········································································································1-21

Configuring Port Rate Limiting ······································································································1-21

Configuring Traffic Redirecting······································································································1-22

Configuring VLAN Marking············································································································1-24

Configuring Queue Scheduling ·····································································································1-24

Configuring Traffic Accounting ······································································································1-25

Enabling the Burst Function ··········································································································1-27

Configuring Traffic Mirroring ··········································································································1-27

Displaying QoS······························································································································1-30

QoS Configuration Example ·················································································································1-31

Configuration Example of Traffic Policing ·····················································································1-31

2 QoS Profile Configuration ························································································································2-1

Introduction to QoS Profile ··············································································································2-1

QoS Profile Application Mode ·········································································································2-1

QoS Profile Configuration ·······················································································································2-2

Configuring a QoS Profile················································································································2-2

Applying a QoS Profile ····················································································································2-3

Displaying QoS Profile Configuration ······························································································2-4

Table of Contents